Abstract

The urban forest is the most important part of the urban ecosystem, established a complete urban forest ecological system, integrated solutions for a variety of cities \Stress the role of urbanization on the urban forest ecological environment, urban forest development have constrained the role of urbanization, this coupling relationship eventually led to urbanization and urban forest ecosystems to seek coordinated development. This paper focuses on the development status of Changsha urbanization and urban forest ecosystem, ecological and environmental problems of urbanization and the role of forests in improving the urban ecological environment, made a focus of analysis. Identified coupling between Changsha urbanization and urban forest ecosystem, discussed the problems and shortcomings of urbanization and urban forest ecosystem development, and sustainable development countermeasures of urbanization and urban forest ecosystem. The research study mainly has the following parts: (1) Changsha urbanization and urban forest ecosystem development status. Changsha fast urbanization, construction did not keep up with the pace of urbanization and urban forest, green space amounted to less than the actual demand of the resident population, density of buildings, urban green space is less and the uneven distribution of per capita public green insufficient, and this has had a negative impact on the urban ecological environment. (2) Changsha urbanization and urban forest ecosystem coupling analysis. Urbanization and urban forest ecosystem is two different subsystems of the urban ecosystem, from which to extract the the fractional factorial qualitative analysis, and many other elements in the two systems, the factor interaction, mutual feedback, coordination, merging together constitute a the efficient complex ecosystem. (3) coupling the establishment of the index system and coordination. Factor analysis extracted some indicators of urbanization and urban forest ecosystem, a combination of qualitative and quantitative analysis method to establish the evaluation index system of coupled systems, the use of gray relational analysis method to construct the coupling degree model reveals urbanization and urban coupling of the main factors of forest ecosystems, Changsha nearly five years coupled type comparison. (4) The results of the analysis and countermeasures. Urbanization and the environment, nor is it necessarily antagonistic relationship. The large number of facts show that, to accelerate the development of urbanization does not inevitably lead to the deterioration of the city's ecological environment, the key is how to better grasp the positive role of urbanization. The combination of the Changsha urban construction, to establish the goals of sustainable urban forest construction, to seek the path of sustainable development. Development for the city of Changsha City, provides some practical research foundation, has important strategic significance in promoting economic integration in promoting the sustainable development of Changsha, Zhuzhou and Hunan Province economy. Urbanization and the construction of the urban forest, and many other issues related to the social, economic, environmental, and health of the residents, the happiness index In this paper, we consider and select the part of the factor analysis of the degree of coupling can only represent some aspects, if you want a comprehensive reflect the the Changsha City urbanization and urban forest level of development, there are to be further improved.